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. Author manuscript; available in PMC: 2017 Jul 24.

Published in final edited form as: Thorax. 2011 Jul 5;66(12):1051–1057. doi: 10.1136/thx.2011.158956

Table 5.

Comparison of forced expiratory volumes before and after bronchodilators in Lima and Tumbes; Peru, 2009–2010

	Lima (n=625)	Tumbes (n=649)	p Value
Sample size
Boys	311	348
Girls	314	301
Mean pre-FVC in litres (SD)
Boys	4.36 (0.7)	3.82 (0.7)	<0.001
% Predicted (SD)^*	110% (13%)	94.2% (11%)	<0.001
Girls	3.46 (0.5)	3.08 (0.4)	<0.001
% Predicted (SD)^*	109% (13%)	93.7% (12%)	<0.001
Mean pre-FEV₁ in litres (SD)
Boys	3.83 (0.6)	3.44 (0.6)	<0.001
% Predicted (SD)^*	111% (13%)	97% (12%)	<0.001
Girls	3.08 (0.4)	2.82 (0.4)	<0.001
% Predicted (SD)^*	109% (12%)	97% (111%)	<0.001
Mean pre-FEV₁/FVC % (SD)
Boys	88% (6%)	90% (6%)	<0.001
Girls	89% (6%)	92% (6%)	<0.001
Reversibility, n (%)	24 (3.8%)	15 (2.3%)	0.16
Boys	11 (3.5%)	9 (2.6%)	0.63
Girls	13 (4.1%)	6 (2.0%)	0.14

^*

All the percentage predicted values are based on models from Hankinson et al.²⁰ for Mexican-Americans.

FEV₁, forced expiratory volume in 1 s; FVC, forced vital capacity.